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71513196 = 2235959433
BaseRepresentation
bin1000100001100…
…11010001101100
311222120020122220
410100303101230
5121301410241
611032435340
71525565166
oct420632154
9158506586
1071513196
1137404a17
121bb48b50
1311a7b501
1496d7936
156429166
hex443346c

71513196 has 12 divisors (see below), whose sum is σ = 166864152. Its totient is φ = 23837728.

The previous prime is 71513161. The next prime is 71513219. The reversal of 71513196 is 69131517.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×715131962 = 10228274404268832, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2979705 + ... + 2979728.

It is an arithmetic number, because the mean of its divisors is an integer number (13905346).

Almost surely, 271513196 is an apocalyptic number.

It is an amenable number.

71513196 is an abundant number, since it is smaller than the sum of its proper divisors (95350956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71513196 is a wasteful number, since it uses less digits than its factorization.

71513196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959440 (or 5959438 counting only the distinct ones).

The product of its digits is 5670, while the sum is 33.

The square root of 71513196 is about 8456.5475224822. The cubic root of 71513196 is about 415.0770573512.

The spelling of 71513196 in words is "seventy-one million, five hundred thirteen thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 5959433 11918866 17878299 23837732 35756598 71513196